"In recent days, it has become clear that our systems to identify and remove hate speech have failed to work as effectively as we would like, particularly around issues of gender-based hate.

"In some cases, content is not being removed as quickly as we want. In other cases, content that should be removed has not been or has been evaluated using outdated criteria.

"We have been working over the past several months to improve our systems to respond to reports of violations, but the guidelines used by these systems have failed to capture all the content that violates our standards.

They objected to the many misogynistic and violent pages that Facebook allowed to exist on its website, even when such pages and groups should come under the definition of "hate speech" because of the pictures and opinions they hosted. These include images of beaten women, with captions like "1/3 of women are physically abused; 2/3 of men aren't doing their job".

Many more examples can be found here, though this page comes with a trigger warning for violence and rape.